Vertical Buttons.dart

import 'package:flutter/material.dart';

void main() {
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new UserOptions(),
    );
  }
}

class UserOptions extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return new UserOptionsState();
  }
}

class UserOptionsState extends State<UserOptions> {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        title: new Text('data'),
      ),
      body: new Center(
          child: new Container(
        child: new Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: <Widget>[
            new Builder(
              builder: (BuildContext context) {
                return new RaisedButton(
                  child: new Text('Go manual'),
                  onPressed: () {
                    Scaffold.of(context).showSnackBar(new SnackBar(
                          content: new Text('You clicked manual'),
                        ));
                  },
                );
              },
            ),
            new Builder(
              builder: (BuildContext context) {
                return new RaisedButton(
                  child: new Text('Go Pro'),
                  onPressed: () {
                    Scaffold.of(context).showSnackBar(new SnackBar(
                          content: new Text('You clicked pro'),
                        ));
                  },
                );
              },
            )
          ],
        ),
      )),
    );
  }
}